Spool oscillation structure for fishing reel

ABSTRACT

A reciprocating/oscillating structure for a reel of the type having a housing, a line carrying spool, a rotor mounted for rotation relative to the housing for directing line onto the spool, a rotatable crank handle for operating the rotor, and structure for reciprocating/oscillating the spool along a line with respect to the housing as the crank handle and rotor are operated to thereby direct line onto the spool. The center shaft is movable cyclically--in one of the fore and aft directions through a first part of the cycle and in the other of the fore and aft directions through a second part of the cycle. The reciprocating/oscillating structure causes the center shaft to move at a first velocity through the first cycle part and at a second velocity through the second cycle part for a given rotational velocity of the crank handle, with the first and second velocities being different.

BACKGROUND OF THE INVENTION

1. Field of the Invention

This invention relates to fishing reels and, more particularly, to areel of the type having a reciprocating/oscillating spool which causeseven disposition of line around the spool during retrieval.

2. Background Art

It is conventional to construct spinning reels with a rotor that isoperable to wind line around a spool and to concurrentlyreciprocate/oscillate the spool so that line is drawn evenly over theaxial extent of the rotor during retrieval.

One objective of spinning reel designers is to maximize castingdistance. It has been found that casting distance is increased bylengthening the stroke of the reciprocating/oscillating spool.Heretofore, this stroke lengthening structure has been fairly expensiveand generally an option only on top of the line fishing reels. This highcost is generally attributable, at least in part, to the delicate andtime consuming assembly steps required to produce reels with suchstructures incorporated. Further, the structure to lengthen the strokehas generally accounted for an undesirable increase in the overall sizeof the reel.

Examples of known, prior art fishing reels, in which the above problemsexist, are as follows: U.S. Pat. Nos. 2,613,468 (Hand); 3,224,703(Clark); 3,946,963 (Oberg); 4,114,825 (Murvall); 4,196,869 (Shepherd);and 4,784,347 (Kobayashi et al).

Another problem with conventional spinning style reels is that the linetends to bury itself as it is retrieved, which causes binding as theline is paid out, as during a cast. This burying results from the factthat the spool shifts axially slowly and at a constant speed withrespect to the rotor in both directions of travel so that the rise anglefor the spiral of line is relatively small. In other words, the coils ofline tend to wrap closely next to each other as the spool moves in eachdirection. The result of this is that the overlying turns align with andtend to be guided into the gap between adjacent underlying turns,causing the line to "bury" itself.

A still further problem with prior art spinning reels is that theretends to be a significant amount of force exerted by thereciprocating/oscillating structure other than in an axial direction onthe center shaft. These non-aligned forces must be overcome by theoperator and this requires additional torque to be applied by theoperator on the crank handle.

SUMMARY OF THE INVENTION

The present invention is directed to overcoming the above enumeratedproblems in a novel and simple manner.

The present invention is directed to a reciprocating/oscillatingstructure for a reel of the type having a housing, a line carryingspool, a rotor mounted for rotation relative to the housing fordirecting line onto the spool, a rotatable crank handle for operatingthe rotor, and structure for reciprocating/oscillating the spool along aline with respect to the housing as the crank handle and rotor areoperated to thereby direct line onto the spool.

According to the invention, the center shaft is movablecylindrically--in one of the fore and aft directions through a firstpart of the cycle and in the other of the fore and aft directionsthrough a second part of the cycle. The reciprocating/oscillatingstructure causes the center shaft to move at a first velocity throughthe first cycle part and at a second velocity through the second cyclepart for a given rotational velocity of the crank handle, with the firstand second velocities being different.

With the inventive structure, the turns of line are wound around thespool in a different pattern for the opposite directions of traveltherefor. That is, as the rotor moves in the slower cycle part, theturns of line are closer together and more numerous than those formed asthe rotor moves oppositely and more rapidly. The more loosely woundturns cross the underlying turns at a relatively large angle and therebytend to bridge the gap between underlying turns wrapped onto the spoolduring the slower of the first and second cycle parts to thereby preventthe line from burying between adjacent, underlying coils, particularlywhen the line is retrieved under load. In short, the turns of adjacentlayers cross each other at fairly large angles to prevent line burying.

The invention also contemplates a simple, relatively inexpensive,compact mechanism for extending the stroke of the center shaft duringreciprocation/oscillation.

More particularly, the reciprocating/oscillating structure consists ofan oscillating pivot arm having spaced first and second ends, structurefor connecting the oscillating arm within the housing for pivotingmovement about a first axis, a first pin and slot connection between thecenter shaft and the second end of the oscillating arm for causing thecenter shaft to move in fore and aft directions in response to rotationof the first end of the oscillating arm in opposite directions about thefirst axis, and structure for effecting pivoting of the first end of theoscillating arm about the first axis in response to rotation of thecrank handle.

In a preferred form, the structure for effecting pivoting of the firstend of the oscillating arm consists of an oscillating drive gear with asecond pin and slot connection between the oscillating drive gear andthe oscillating arm, and structure for rotating the oscillating drivegear as an incident of the crank handle being operated.

The invention contemplates that the slots associated with the first andsecond pin and slot arrangements be either curved or straight. A curvedslot for the first pin and slot connection permits the forces that areexerted on the center shaft to be principally in the axial direction. Astraight slot is, however, also within the scope of the invention.

The slot associated with the second pin and slot arrangement, whenstraight, allows the first and second cycle parts to be varied relativeto each other to thereby control the relative velocities of the spool infore and aft directions. Typically, the oscillating drive gear has a pinwhich moves in the slot associated with the second pin and slotconnection. With a straight slot, the reciprocating/oscillatingstructure can be used to move the center shaft through its full rearwardstroke by rotation of the oscillating drive gear through less than180°--for example on the order of 160°. The other part of the cycle,which produces the opposite center shaft stroke, occurs through 180 plusthe additional 20° rotation of the oscillating drive gear. With aconstant rotation of the crank handle, the center shaft movement in onedirection is quicker than in the other direction, with the aboveattendant advantages. A curved slot could be employed to equalize thevelocity of the opposite strokes.

The invention contemplates that the center shaft stroke be longer thantwo times the radial distance between the rotational axis of theoscillating drive gear and the pin associated with the second pin andslot connection, the latter distance being typical of many conventionaltype reels. To accomplish this end, the second pin and slot arrangementacts on the oscillating pivot arm intermediate the length thereof, sothat the free end of the pivot arm engages the center shaft and causesan extended stroke.

Another aspect of the invention is the facilitated assembly of thecenter shaft to the oscillating pivot arm. In one form of the invention,the oscillating pivot arm has a bifurcated end which defines arecess/slot for reception of an extension on the center shaft. One formof the extension is a disc-shaped paddle which fits within the pivot armrecess/slot and is slidable in a vertical direction relative thereto inoperation. A pin extends preferably through both legs defined by thebifurcation on the oscillating pivot arm, through the disc shapedextension, and is guided by a slot in one or both of the pivot arm legs.

An alternative form of the extension has a generally I-shape with avertical body and transverse cross bars. The body of the I slides withinthe recess/slot during operation. With this arrangement, the oscillatingarm and extension are operatively engaged by placing the legs of thebifurcated oscillating arm surroundingly over the body of the I-shapedextension whereafter a pin or the like is then attached to pivotablyconnect the end of the oscillating pivot arm remote from the bifurcatedend. The extension itself need not be connected to the center shaft asby pins or other types of fasteners.

In one form of the invention, one of the slots is a blind slot in oneleg of the oscillating arm and the other slot is provided in the otherleg of the oscillating arm.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a spinning style fishing reel with spooloscillating/reciprocating structure, according to the present invention,incorporated therein and with a spool thereon in a fully forwardposition;

FIG. 2 is a view as in FIG. 1 with the spool thereon in its rearwardmostposition;

FIG. 3 is a cross-sectional view of the fishing reel of FIGS. 1 and 2,showing the spool oscillating/reciprocating structure according to thepresent invention, taken along line 3--3 of FIG. 2;

FIG. 4 is a fragmentary, sectional view as in FIG. 3 with the spoolmoved to its forwardmost position corresponding to that in FIG. 1;

FIG. 5 is a perspective view of the spool reciprocating/oscillatingstructure according to the present invention;

FIG. 6 is a perspective view of a modified form of spoolreciprocating/oscillating structure according to the present invention;

FIG. 7 is a perspective view of a still further modified form of spoolreciprocating/oscillating structure according to the present invention;and

FIG. 8 is a schematic representation of the relationship between anoscillating pivot arm and oscillating drive gear associated with thespool reciprocating/oscillating structure according to the presentinvention throughout the operating range for the spool.

DETAILED DESCRIPTION OF THE DRAWINGS

In FIGS. 1 and 2, a spinning style fishing reel is shown at 10, whichreel 10 is of the type suitable for incorporation of the presentinvention. The reel 10 consists of a fixed housing 12 with an integralmounting stem 14 with a foot 16 thereon for attachment to a fishing rod(not shown).

A spool 18 is provided at the front of the reel 10 and holds a supply offishing line. To effect wrapping of the line around the spool 18, arotor 20 is provided. The rotor 20 has diametrically opposed bail ears22, 24 which rotate about a lengthwise, fore and aft axis 26 for thereel 10. This rotation is imparted through an external crank handle 28through an internal mechanism as will be described in detail below.

The bail ears 22, 24 cooperatively define a support for a pivotable bailassembly 29 consisting of spaced bail arms 30, 32 and a formed wire bail34 connecting therebetween. As the rotor 20 is operated, a line guide 36on the bail assembly 29 engages the line and wraps the line around thehub 38 of the spool 18. Because the line guide 36 has a fixed axialposition with respect to the reel as it is operating, it is necessary toreciprocate/oscillate the spool 18 about the fore and aft reel axis 26to cause an even distribution of line on the spool 18 during retrieval.This reciprocation/oscillation occurs cyclically with a spool strokebetween the solid line position of FIG. 1, representing the forwardmostspool position, and the FIG. 2 position for the spool, representing therearwardmost spool position. The relative positions of the spool 18 inthe forwardmost and rearwardmost positions therefor can be seen inphantom and solid lines, respectively, in FIG. 2.

The present invention is directed to the structure forreciprocating/oscillating the spool 18, with the details of thatstructure shown in FIGS. 3-7. The reel housing 12 has an opening at 40which permits access to the internal reciprocating/oscillating structureat 42. With the reel assembled, a cover plate 44 (FIGS. 1 and 2) sealsthe opening 40. The cover plate 44 is removably held in place by aplurality of screws 46 which, when removed, permit separation of thecover plate 44 from the reel housing 12 and access to the internaloperating mechanism for the reel 10.

The rotor 20, shown in FIG. 4 with the bail assembly 29 removed, ismounted for rotation on a pinion gear assembly at 48. The pinion gearassembly 48 consists of a tubular, hollow body 50 which is journalledfor rotation within a forwardly extending sleeve 52 on the housing 12,as by a bearing 54. A pinion gear 56 surrounds the tubular body 50 andis fixed for rotation therewith. The forward free end 58 of the body 50extends through a hub 60 on the rotor 20 and is threadably connectedthereto.

Rotation of the rotor 20 is effected by the crank handle 28 through acrank shaft 62 connected thereto. The crank shaft 62 is rotatable abouta laterally extending axis 64 which is at right angles to the verticalplane through the fore and aft reel axis 26. The crank shaft 62 has aface gear 66 which meshes with the pinion gear 56 to transmit rotationfrom the crank handle 28 to the pinion gear 56 and, in turn, the rotor20. As seen in FIG. 3, rotation of the crank shaft 62 in acounterclockwise direction, as indicated by arrow 68, effects rotationof the rotor in the direction indicated by the arrow 70.

At the same time that the rotor 20 is operated by the crank handle 28,the spool 18 is caused to reciprocate in the line of the fore and aftreel axis 26. This reciprocating/oscillating movement of the spool 18 ispermitted by mounting the spool 18 on a reciprocating/oscillating centershaft 72. The center shaft 72 is coaxial with the tubular body 50 and isclosely received within a bore 74 extending axially therethrough forguided movement in the fore and aft directions. The spool 18 is mountedon the forward part 76 of the center shaft 72 exposed forwardly of thepinion gear assembly 48.

Fore and aft axial shifting of the center shaft 72 is accomplishedthrough the reciprocating/oscillating structure 42. Thereciprocating/oscillating structure 42 for the spool 18/center shaft 72consists of an elongate, oscillating pivot arm 78 having first andsecond opposite ends 80, 82 respectively. The first end 80 is pivotablyattached to the housing, as by a pin 84, for rotation about an axis 86that is substantially parallel to the rotational axis 64 of the crankshaft 62. Pivoting of the arm 78 about the axis 86 is effected throughan oscillating drive gear 88 which is in mesh with a gear 90 on thecrank shaft 62. Counterclockwise rotation of the face gear 66 in FIG. 3effects clockwise rotation of drive gear 88, as indicated by arrow 92.The drive gear 88 has an integral, laterally projecting pin 94 whichmoves guidingly within a blind, elongate, straight slot 96 in the pivotarm 78 and opening laterally toward the drive gear 88.

The center shaft 72 operates cyclically and has a stroke length that isgreater than the distance 2× in FIG. 3, where X is the distance betweenthe rotational axis 98 for the drive gear 88 and the center 100 of thepin 94. In other words, the pin 94 traces a circle with a diameter equalto 2× in operation. It is known in the art to provide a pin and slotconnection directly between a drive gear, corresponding to gear 88 inFIG. 3 and a center shaft. This limits the stroke to two times thedistance between the axis of rotation of the drive gear in the center ofthe eccentric pin, which distance corresponds to 2× in FIG. 3. Theinventive structure extends the stroke length over such conventionalstructures and, in addition, produces an arrangement wherein the centershaft 72 moves forwardly through one part of the cycle more rapidly thanit retraces that path in an opposite, rearward direction.

To accomplish these ends, the slot 96 cooperating with the pin 94 ismade straight and in substantial alignment with the length of the pivotarm 78. Referring to FIG. 3, as the drive gear 88 is rotated further inthe clockwise position, the pin 94 engages the rearwardly facing surface102 bounding the slot 96. The pin 94 causes forward movement of thecenter shaft 72 until the pin realizes approximately a nine o'clockposition. At the nine o'clock position for the pin 94, which is shown inFIG. 4, further clockwise rotation of the gear 88 causes the pin 94 toengage the forwardly facing surface bounding the slot 96. Rotationthrough about 160°, to the two o'clock position shown in FIG. 3, theneffects the full rearward movement of the center shaft 72.

The significance of the above can be understood by reference to theschematic in FIG. 8. Assuming the crank shaft 62 is rotated at aconstant velocity by the user, the drive gear 88 similarly rotates at aconstant angular velocity in a clockwise direction as indicated by thearrow 106 in FIG. 8. Consequently, it takes less time for the pin 94 totravel from point A to point B, during rearward movement of the centershaft 72, than it does for the pin 94 to move from point B to point A,during forward movement of the center shaft 72. This difference indistance is attributable to the additional 20 or so degrees that thegear 88 must traverse to effect the same stroke movement for the centershaft 72.

The effect of this is that the line is not wrapped around the spool 18in the same manner with the spool 18 moving in both fore and aftdirections. As the center shaft 72 moves in a forward direction, itsvelocity, and thus that of the spool 18, is diminished compared to thevelocity in the opposite direction for the same elements. The turns ofline are thus more numerous per unit axial length. Upon the center shaft72 moving rearwardly at the higher velocity, the line tends to bestretched angularly across and bridges the coils developed by the rotor20 during forward movement thereof at a relatively large angle. Thisbridging tends to keep the line from migrating between adjacent turns.Similarly, when the center shaft 72 moves forwardly again, the turnsdeveloped during rearward movement of the spool 18 block passage of theturns between adjacent, subjacent turns. The turns of line do notintertangle and the user thus has the benefit of a longer stroke for thecenter shaft 72 and the substantially unimpeded payout of line.

It is possible to equalize the speed of the movement of the center shaft72 in both the fore and aft directions by making the slot 96 curved, asshown in phantom in 108 in FIG. 5. With this arrangement, the curve inthe slot 108 would begin at the two o'clock position so that the pin 94would continue to urge the center shaft 72 rearwardly until the threeo'clock position is realized. This would also cause the center shaft 72to travel further rearwardly than with the FIG. 3 structure.

A pin and slot connection is also provided at 110 between the pivot arm78 and the center shaft 72. The pin 112, in the embodiment shown,projects laterally into the curved slot 114. The pin 112, as shown inFIG. 4, may be a fastener with a head 116 thereon to facilitatethreadable engagement with the center shaft 72. As can be seen in FIG.3, as the pivot arm 78 moves from its rearwardmost position, a forwardlyfacing edge on the slot 114 bears the center shaft 72 in a forwarddirection. As this occurs, the pin 112 slides upwardly into the curvedslot until the full forward position of FIG. 4 for the center shaft 72is realized. With the reciprocating/oscillating mechanism 42 in the FIG.4 position, further operation of the drive gear 88 causes the rearwardlyfacing, curved edge 120 bounding the slot 114 to bear the pin 112 in arearward direction to thereby shift the center shaft 72 towards the FIG.3 position therefor. In so doing, the pin 112 is guided progressivelydownwardly relative to the slot 114.

The curvature of the slot 114 is significant in that it at all timeskeeps the main force component on the pin 112 in axial alignment withthe length of the center shaft 72. This minimizes the torque that mustbe exerted on the pivot arm 78 to effect movement of the center shaft 72and thereby makes it easier for the user to operate the crank handle 28.

In FIGS. 3-5, one type of pivot arm 78 is shown together with one typeof connection between the center shaft 72 and pivot arm 78. A modifiedform of pivot arm 122, according to the invention, is shown in FIGS. 6and 7, together with two separate means for attaching the center shaft72 to the pivot arm 122.

In FIG. 6, an extension 126 is provided on the end of the center shaft72. The extension 126 can be integrally formed with the center shaft 72or may be separately attached thereto. The extension 126 has adisc-shaped body/paddle 128 which is received in a slot 130 definedbetween spaced legs 132, 134 on a bifurcated end 136 of the pivot arm122, remote from the pivot axis 138, corresponding to the pivot axis 86in the prior embodiment. The arm 122 otherwise operates in the samemanner as the earlier described embodiment. The leg 132 has a slot 140therethrough corresponding to the slot 96 in the prior embodiment andthe leg 134 has a slot 142 corresponding to the slot 114 in the priorembodiment. A pin 144 extends through the disc-shaped body 128 on theextension 126 and cooperates with the slot 142, with the pin 94cooperating with the slot 140 to produce substantially the same movementof the center shaft 72 as in the prior embodiment.

A modified extension 146 is shown in FIG. 7. The extension 146eliminates the need for separate assembly of a pin 144 as in the FIG. 6embodiment. The extension 146 has an I-shape with a vertical body 148and spaced cross bars 150, 152. The body 148 is simply directed up intothe slot 130 during assembly. The arm 122 bears on the cross bar 150 asit moves in a clockwise direction and against the cross bar 152 as itmoves in a counterclockwise direction. Facilitated connection of thepivot arm 122 and center shaft 72 results.

The foregoing disclosure of specific embodiments is intended to beillustrative of the broad concepts comprehended by the invention.

We claim:
 1. In a fishing reel of the type having a housing, a linecarrying spool, a rotor mounted for rotation relative to the housing fordirecting line onto the spool, a rotatable crank handle for operatingsaid rotor, and means for reciprocating/oscillating the spool along aline with respect to the housing as the crank handle and rotor areoperated to direct line onto the spool, said reciprocating/oscillatingmeans including a center shaft movable in a fore direction and an aftdirection with respect to the housing for effectingreciprocating/oscillating movement of the spool, saidreciprocating/oscillating means comprising:said center shaft beingmovable through a cycle (a) in one of said fore and aft directionsthrough a first part of said cycle and (b) in the other of said fore andaft directions through a second part of said cycle; and saidreciprocating/oscillating means including means for moving the centershaft at a first velocity through said first cycle part and at a secondvelocity through said second cycle part for a given rotational velocityof said crank handle, said first and second velocities being different,said reciprocating/oscillating means comprising an oscillating pivot armhaving spaced first and second ends, first means for pivotablyconnecting the first end of the oscillating pivot arm to the housing forpivoting movement relative thereto about a first axis, second means forconnecting the center shaft to the second end of the oscillating pivotarm and for causing the center shaft to move in said fore and aftdirections in response to pivoting of the first end of the oscillatingpivot arm in opposite directions about said first axis, and means foreffecting said pivoting of the first end of the oscillating pivot armabout the first axis in response to rotation of the crank handle, saidmeans for effecting pivoting of the first end of the first oscillatingpivot arm comprising a drive gear that is rotatably mounted about afixed axis substantially parallel to the first axis, a first pin on thedrive gear and a first slot in the oscillating pivot arm for receptionof the first pin on the drive gear, said first pin movingreciprocatively in the first slot as the pivot arm oscillates, said reelincluding means for rotating the drive gear in response to rotation ofthe crank handle, wherein said oscillating pivot arm is bifurcated todefine first and second laterally overlapping legs defining a secondslot therebetween and the center shaft has an extension which resides atleast partially in the second slot between the first and second legs. 2.The fishing reel according to claim 1 wherein said extension has adisc-shaped end which resides between the first and second legs and asecond pin extends through at least one of the first and second legs andinto the disc-shaped end.
 3. The fishing reel according to claim 1wherein said extension has an I-shaped end with a body and spacedcross-bars and the body of the I-shaped end comprises a second pin whichresides in the slot defined between the first and second legs on theoscillating pivot arm.
 4. The fishing reel according to claim 3 whereinthe body of the I-shaped end extends substantially parallel to the axisof the center shaft.
 5. In a spinning reel having a housing being openon one side and having a forwardly extending sleeve on the front thereofwith an opening through the sleeve, a cover plate for covering said openside of the housing, a pinion assembly extending rotatably through saidsleeve and having a rotor secured to an exposed end of said pinionassembly, a pinion gear on the portion of said pinion assembly insidesaid housing, a crank shaft in the housing having a crank handleexterior of the housing, the crank shaft lying transverse to the axis ofthe pinion assembly, a drive gear on said crank shaft meshing with thepinion gear on the pinion assembly, a second gear on said crank shaft,an oscillating drive gear meshing with the second gear on the crankshaft, a rotor having a bail assembly for directing line onto the reelas the rotor is operated, a center shaft extending through said pinionassembly and supporting a spool on a forward end thereof and means foroscillating said center shaft, characterized byan oscillating pivot armpivotably mounted on the housing above the center shaft, said pivot armhaving a first elongate blind slot on one side thereof; a pin on oneside face of the oscillating drive gear engaging in said first elongateslot in said pivot arm; a curved slot formed in the other side of saidpivot arm; and a slot in the midportion of the pivot arm between thefirst elongate blind slot and the curved slot, said slot communicatingwith the curved slot throughout substantially the entire extent of saidcurves lot, a rear end portion of the center shaft extending into saidslot in said pivot arm and having a sidewardly extending pin extendinginto said curved slot of the pivot arm whereby turning the crank shaftwill rotate the rotor and will rotate the oscillating drive gear which,in turn, will oscillate the pivot arm and the center shaft, said centershaft moving faster in one direction than in the other direction andhaving a stroke of oscillation greater than the diameter of a circlesubscribed by said pin on the oscillating drive gear.
 6. The spinningreel according to claim 5 wherein the center shaft has an I-shaped endwith a body on the I which moves slidably within the slot.
 7. Thespinning reel according to claim 5 wherein the center shaft has adisc-shaped end which resides in the slot, the sidewardly extending pinbeing mounted on the disc.
 8. The spinning reel according to claim 7wherein a concave surface on the pivot arm defines the curved slot andthe concave surface defining the curved slot opens in a forwarddirection on the reel.
 9. In a spinning reel having a housing with aforwardly extending sleeve on the front thereof, a pinion gear assemblyextending rotatably through said sleeve and having a longitudinal axis,a rotor secured on an exposed end of said pinion gear assembly, a piniongear on a portion of said pinion assembly inside said housing, a crankshaft in said housing having an axis perpendicular to a plane containingthe longitudinal axis of the pinion gear assembly, a drive gear on saidcrank shaft meshing with the pinion gear on the pinion gear assembly, asecond gear on said crank shaft, an oscillating drive gear rotatablymounted on an axis parallel to the axis of the crankshaft and meshingwith the second gear on the crank shaft, a pair of bail arms pivotablymounted on opposite sides of said rotor with a bail extending betweensaid bail arms, a center shaft extending through said pinion assemblyand supporting a spool on the forward end thereof and means foroscillating said center shaft, characterized byan oscillating pivot armpivotably mounted on the housing at a location offset from the centershaft, said pivot arm having a first elongate blind slot on one sidethereof; a pin on the oscillating drive gear engaging in said firstelongate slot in said pivot arm; a second slot formed in the other sideof said pivot arm; a recess between the first and second slots andcommunicating with the second slot throughout substantially the entireextent of said second slot, the rear end portion of the center shaftextending into said recess in said pivot arm; and pivot means on saidcenter shaft extending into said second slot of the pivot arm wherebyturning the crank shaft will rotate the rotor and will rotate theoscillating drive gear which, in turn, will oscillate the pivot arm andthe center shaft, said center shaft will move faster in one directionthan in the other direction and said center shaft will have a greaterlength of oscillating stroke than the diameter of a circle subscribed bythe pin on the oscillating drive gear.
 10. A spinning reel according toclaim 9 wherein said second slot is defined by a curved surface on theother side of the pivot arm, said surface defining the second slothaving a center of curvature which is forward of the pivot arm.
 11. Aspinning reel as claimed in claim 10 wherein said second slot overlaps aportion of said first slot.